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2 years ago

15

What is 0.05×0.8 please help

1 answer:

Nataly [62]2 years ago

4 0

0.05x0.8 would be 0.4

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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

snow_lady [41]

Answer: the answer is a

Step-by-step explanation: if you look at the choices they give you it’s would help you see if they look alike

i hope this helps :)

4 0

2 years ago

64=(x+8)+90<br><br>what does x equal

Tomtit [17]

$Solution, solve\:for\:x,\:64=\left(x+8\right)+90\quad :\quad x=-34$

$Steps:$

$64=\left(x+8\right)+90$

$\mathrm{Switch\:sides}, \left(x+8\right)+90=64$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a, x+8+90=64$

$\mathrm{Add\:the\:numbers:}\:8+90=98, x+98=64$

$\mathrm{Subtract\:}98\mathrm{\:from\:both\:sides}, x+98-98=64-98$

$\mathrm{Simplify}, x=-34$

$\mathrm{The\:Correct\:Answer\:is\:x=-34}$

$\mathrm{Hope\:This\:Helps!!!}$

4 0

2 years ago

. An Olympic runner completed a 100-meter race with a time of 12.5 seconds. What was her average speed?

svet-max [94.6K]

So you would do 100 divided by 12.5 and that equals 8. So the answer would be 8mph

5 0

2 years ago

450 high school freshmen were randomly selected for a national survey. Among survey participants, the mean grade-point average (

umka21 [38]

Answer:

The margin of error is of 0.01.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.7}{2} = 0.15$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.15 = 0.85$ , so Z = 1.037.

The margin of error is of:

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Standard deviation was 0.21.

This means that $\sigma = 0.21$

Sample of 450:

This means that $n = 450$

What is the margin of error, assuming a 70% confidence level, to the nearest hundredth?

$M = z\frac{\sigma}{\sqrt{n}}$

$M = 1.037\frac{0.21}{\sqrt{450}}$

$M = 0.01$

The margin of error is of 0.01.

4 0

2 years ago

7 Times 42 divided by 70,000×49×79 minus hundred

kompoz [17]

The answer is -83.7418
Rounded to: -83.74

5 0

2 years ago

Read 2 more answers